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arXiv · 0912.0158

FIESTA 2: parallelizeable multiloop numerical calculations

A. V. Smirnov·V. A. Smirnov·M. Tentyukov
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Abstract

The program FIESTA has been completely rewritten. Now it can be used not only as a tool to evaluate Feynman integrals numerically, but also to expand Feynman integrals automatically in limits of momenta and masses with the use of sector decompositions and Mellin-Barnes representations. Other important improvements to the code are complete parallelization (even to multiple computers), high-precision arithmetics (allowing to calculate integrals which were undoable before), new integrators and Speer sectors as a strategy, the possibility to evaluate more general parametric integrals.

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A. V. Smirnov, V. A. Smirnov, M. Tentyukov. 2009-12-01. FIESTA 2: parallelizeable multiloop numerical calculations. https://doi.org/10.1016/j.cpc.2010.11.025

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